Tank-car.



M. A. GARRETT;

TANK GAE.

APPLICATION rum) JULY 5, 1913.

1 .7 939 Patented Feb. 24, I914.

2 SHBETSEHEET 1.

asxawd/ M. A. GIARREYYI.

TANK OAR. APPLIOATIONTILED JULY 5, 1913.

1.087339n Patented Feb. 24, 1914.

2 SHEETS-SHEET 2.

MYERK GlalJlHaG-G, XLLKHUIEE.

Specification of Letters Patent.

Patented rec. ea, rare.

Application filed July as, alerts! in. rare-r2.

To all whom it may concern Be it known that l, llllvnns a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Tanlc- Cars, of which the following is a specification.

Heretofore the common practice has been to construct tank cars by forming a sup porting frame having center sills, and mounting the tank proper, which generally has been of a cylindrical shape, upon the frame and above the center sills. For tanks of limited capacity such construction w s, forthe most part, unobjectionable. l lith the increase in the size of the tank the center of gravity was raised so far that on curves the car tipped over and many wrecks resulted. Further, in bufiing the frame has often been shifted relative to the tanlr, or the latter shifted relative to the inertia of the tank and its contents, or to the momentum of the same relative to the frame. Still further, no provision has been made in construction -for the allow ance of expansion of the tank: when loaded with hot material, such as hot lard, hot tar, etc.

The main object of my invention is to ob viate the objections appertaining to tank cars constructed as described, and as otherwise constructed, and to provide a tank car of relatively large capacity, relatively low center of gravity when loaded, and with a tank made separate from the frame and removably anchored thereto in such a way that the tank and frame shall preserve their fixed relative positions each to th other under all conditions of service.

A further object is the production of a tank car so constructed as to provide for expansion without injurious results to the structure, and one .in which the strains of drawing and builing shall be transmitted mainly around the lower sides of the central part of the tank.

Withthese ends in view, my invention consists in constructing a frame with strong and rigid ends, especially in front of the body bolsters, where the draft and butting ears are attached, by means of two paralcl flanged metallic beams, which beams b. cl; of the body bolsters are spread apart to leave a relatively large unobstructed space at the center, uniting said beams by tension members, and providing trusses for the to the former, due

lsame, and supporting upon said frame a A. G-Anus'rr, I tsnlt. the center lower part or wall of which shall occupy a position below the horizontal plane of the body bolsters and relatively near the road bed.-

l urtl'aer, it consists in uniting the said main flanged beams at their central portions by curved. or bent bars or supports whereby.

"ili the strains upon the said flanged nding to spread them will be transmitted to said bars or supports and exert a lifting force or energy upon the bottom 0;, t l

l inally, consists in certain novelties of construction and combinations of parts as herein set forth and claimed.

The accompanying drawings illustrate one complete example of the embodiment of the invention and two modifications of tension members back of the bolsters, constructed according to the best modes of procedure I have so far devised for the purpose.

igure 1 is a side view in elevation of a tank car embodying my invention. Fig. 2 is cross section of Fig". 1 on line as, showing one. of the body bolsters in elevation and the heel of the tank. Fig. 3 is a top plan view of the frame, tootboards being removed. 4; is a fragmentary section on one side at the longitudinal center, showing the det 1 his connection of the tank to a side Figs. and are detail views, showing diii erent dispositions of the tension members back of the bolsters.

'lhe main elements of the frame are two flanged metallic beams or sills A A, in this instance angle beams 8"2i8"x1' 1-", extending trom end to end of the frame. At the extreme ends B B they are relatively near together and parallel and adapted to -receive the ilraft and buffing gears, then they are bent apart or spread at angles each to the other for a short distance beyond the body bolsters and thereafter at their middle portions are disposed parallel and constitute side sills. ltltifi ening plates D D are securely riveted to the parallel end portions of the brains in front or" the bolsters, and the extrcme ends are provided with castings C C to receive the impact from the coupler horns in butting. the said castings being secured to the beams and to the end sills E E by rivets or bolts in'a well luiownway. Supports F F for the footboards are riveted to the flanges of the sills at the sides and the footboards" pieces attached to the under side beams are bolted to these supports and to the ends G G of the end sills. The body bolsters H H are in this instance each of metal I-shaped in cross section and each cast with passed, also clearlyi'ndicated by dotted lines.

Tension members J 'J, in this instance channel beams. unite the mainsills back of the bolsters. They may be disposed as shown in Figs. 1 and 3, where the web of the beam is obliquely disposed at an angle of about 45 degrees, or in vertical or horizontal positions as shown by Figs. 5 and 6, as desired, to fit or match the outline of the lower .7 portion of the tank adjacent thereto. Unit ing the main beams or sills at their central portions are two downwardly curv ed supporting membersin'this instance channel K K with the ends riveted to the webs of the sills. The side trusses consist at each side of a horizontal metallic bar L and two obliquely disposed bars M M secured to the webs of the sills and to the central channel beams K K, as shown in Figs. 1 and 8.

The. tank N is supported at its ends by the body bolsters, and intermediate its ends by the tension members J J the curved members K K, and the sills. To prevent longitudinal displacement of the tank relative to the frame, or vice versa, angle plates 0 O fitting against the outer vertical surfacesot' the body bolsters and riveted to the bottom surfaces of the ends of the tank are provided, as shown in full lines, Fig. 2. These angle plates may be of any desired length; for instance, of the length shown by dotted lines, Fig. 3, which illustrates the locations of the plates relative to the top flange of the body bolster. To anchor the tank still more securely, angle irons P P are riveted to each side of the tank and their flanges secured by bolts to the flanges of the sills, as shown by Figs. 1 and 4. e

The tank may be of any shape desired with the downwardly extended portion Q, which may be provided with a single or double discharge outlet having a valve or valves R of any suitable type for discharging the contents to one or both sides of the track. The bottom of the tank should incline toward the discharge outlets,as shown by Fig. 1,.to facilitate the complete discharge of the contents. The tension members-J J may be disposed relative to the under surface of the tank, as" shown in'Figs. l and 3, or in Figs. 5 and 6, or otherwise, so as to support part of the weight of the tank and also prevent the longitudinal movementof. the

same relative to the frame, the flat sides of the channels bearing against the surfaces of the tank, thus cooperating with the other described means for the same purpose, and, furthermore, distributing the strains. desired, two U-shaped channels SS may be extended over the top of the tank adjacent the center for the purpose of more securely anchoring the same to the frame.

The car comprising the frame and tank connected therewith, as shown and described, has a relatively low center of gravity when the tank is filled withoil orother liquid and thus it will not tip over on curves. The tank can easily be removed from the frame when repairs of either the tank or frame are necessary. The frame itself is so constructed that it will effectively resist strains imparted from any direction, and especially those incident to drawing and bufling, by reason of the presence of the end castings and the plates and body bolsters, and the tank itself is securely anchored against endwise movements, especially by the heel pla es or angles O 0. Moreover, the expansion and contraction of the tank under the action of heat will not seriously affect the same or the frame.

In buffing the strains not absorbed. by the rigid end portions, the castings, end cover plates and sills below the same will be transmitted through the obliquely disposed parts of the sills to the parallel intermediate porlions thereof and any strains tending to.

spread the sills will be transmitted to the members J J and K K and be transformed into lifting energy upon the bottom of the tank, thus preventing an excessive bending of the sills from their normal parallel positions. The tie members S S will also counteract the upward strains imparted to the supports K K and distribute the strains.

Obviously, in the embodiment of the invention minor changes may be introduced,

such as the addition of draft beams to the ends of the sills, the substitution of other flanged beams of I or channel or other shape for the angle beam sills, and a different form of side truss may be selected, without constituting substantial departures.

What I claim is:

1. A car frame comprising body bolsters,

two main flanged metallic members extend ing from end to end-of the frame, the ex treme adjacent ends thereof in front of the bolsters being parallel and the portions intermediate the ends spread apart, to constitute' the side sills and the central portions thereof located in planes outside of but par- .allel with the said extreme adjacent ends,

means uniting theextreme' adjacent parallel ends of the members, andv tension members uniting the intermediate portions of said members whereby an open'space provided ,betneenthehndy ;bolstersaand th' spreadindli noa'naaa termediate tank.

2 A car iranie comprising two main flanged metallic members extending from end to end of the frame, the extreme adjacent ends thereof being parallel and the portions intermediate the ends spaced apart to lie in planes parallel with but'outside the planes or the said extreme adjacent ends so as to constitute side sills, cover plates riveted to the adjacent parallel ends or the members, end sills, castings in connection with the end sills adjacent to the said lates, body bolsters located between the said or treme adjacent ends of the main members and the central spaced apart portions thereof, and tension members uniting the intermediate portions of said'members. 1

3. ll car frame comprising two main flanged metallic members extending from end to end of the frame, the extreme adjacent ends thereof being parallel and the portions intermediate the ends spaced-apart, means uniting the extreme adjacent parallel ends or the members, body bolsters haring slots within which the flanged members are seated and anchored, and tension members uniting the intermediate portions oi? said members,

t. A car i'rame comprising two main flanged metallic members extending hem end to end of the frame, the extreme ad-v jacent ends being parallel and the portions intermediate the ends spaced apart to con stitute the side sills and to lie in planes ontportions to receive and support a side the parallel planes oil the extreme adsill , iacent ends, means uniting the extreme adjacent parallel ends of the members, body bolsters to which saidmembers are secured, curved tension members uniting the intermediate portions of said members, and truss members united to the curved tension members and to the spread side sill portions of the said maindanged members.

5. A car trams comprising two main flanged metallic members with the extreme adjacent ends united by suitable means, the central portions being spaced apart to lie in planes outside the extreme adjacent ends and constituting the side sills intermediate the bolsters to which said members are secured, curved supporting members uniting the side sill portions of said members, truss members in connection with the side sill portions and the said supporting members, and tension. members back of the bolsters and serving as bearings for the bottom of the tank.

.6. The combination with a frame con1- prising two main members extending from end to and ot the frame having the extreme adjacent parallel ends united and the censpread apart to lie in longitutral portions dinal planes outside the planes of the excured within the slots I l in said Ell int treme parallel ends to constitute side;

sills, and provided with main members and uniting the same, oi body bolsters to which the main members are secured, a tank with a lower portion extended below the plane oil the body bolsters, and means for anchoring the tank to the frame.

7. The combination with a frame comprising two main members extending from end to end oi the frame having the extreme adjacent parallel ends united and the central. portions spaced apart to lie in longitudinal planes outside the planes of the extreme adacent parallel ends so as to constitute side sills and provided with cross supports, of body bolsters to which the main members are secured, a tank with a lower portion extended below the plane oi" the body bolsters, and means, as heels secured to the under suriaoe of the tank, and engaging the body bolsters for anchoring the tank to the frame.

8; The combination with a iirame comprising two main members extending .t'rom end to end of the frame having the extreme adjacent parallel ends united and the central portions spaced apart to lie in planes outside the planes of the extreme adjacent parallel ends to constitute side sills and provided with supports, of body bolsters to which the main members .are secured, a tank with a lower portion extended below the plane of the body bolsters, and means connected to the tanlr and the side sillsdor anchoring the tank to the frame. a

9. The combination with a car frame harinp; two main flanged longitudinal metallic members united at the extreme adjacent parallel ends and bent apart intermediate their ends, bent supporting members uniting the central portions of said main members, body bolsters, and tension members back oi the body bolsters, of a tankwith a down.- wardly extended central part, said tank being supported by the body bolsters, the bent supportingiinembers, tension members and the central portions oi the said main memhers to which main members said tank is do tachably secured.

ll). A car frame comprising, two main flanged metallic members extending from end to end oil the thereof being spread apart and the adjacent ends substantiallyparallel, means for unit ing the extreme ends of said members, and slotted bolsters, the main members being sebolsters. In testimony whereof ll allix my signature in presence of two witnesses.

MYERS A. Ghllllltll.

Witnesses:

vB, l5. lnvmosrox, hi. llamas,

trams, the central portions i 

